Corner construction



Feb 1946- w. M. KRANTZ CORNER CONSTRUCTION Filed Dec. 15, 1944 r T .71 :l: Z r l l I I ll mfl\ ATTORNEY rangement of Patented Feb. 26, 1946 Walter M. Krantz, Youngstown,

Qhio, assignor,

by-direct and mesneassignments, toAceStorm Window Company, ,poration of "Ohio Youngstown, 01110. a cornpplicationfi1ecemhcrf15, 1944,:Scria1 No. 56853 19 .3 Claims.

This invention relates to l a corner construction by means of which unitary frame-like structures can'be formed simply and efficiently.

The principal object of the invention is the provision of a corner construction particularly adapted for constructing frame-like structures.

A further object of the invention is the provision of a corner construction comprising means for unitingpre-cutmitered sections of frame' material.

vA;still further object :of the invention is the provision of .a framing section and a :corner "piece adapted to unite :pieces .of .the framing section in :an veficientcornenconstruction.

The corner construction shown :and described herein :has been designed to "facilitate ;the .construction .of frames :such .astmay :be employed :for various purposes including ithe formation of storm sash .and rth'elike. :It :is .well known :that in theiormatizm of :various types and {sizes of frames such as ;are,employed:for stormsash purposes the ability :to formatight andstructu-rally sound corner construction is highlyadvantageous to the simpleand inexpensiveiframeconstruction.

The particular corner construction shown and described herein enables the :ready formation :of rectangular frames by the simple expedient :of cutting pieces .of the frame section -nf."suitable length, mitering the ends :and uniting the :cut pieces into aframe structure :by the application to the corners thereofof L-shaped brackets .so formed as-to tightly hold the formed in :desired relation used in forming stomn sash the corner construeiton shown and described herein zpemnits sthe ready assembly :of storm sashinaananner'toiprovide for the positive fit ,of with respect to the window is intended.

With the foregoing and other objects in View which will appear as the description proceeds, the invention resides in the combination and arparts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

The invention is illustrated in the accompanyto "one another. As

opening for which ing drawing, wherein:

Figure 1 is a top plan view of the improved corner construction.

Figure 2 is a view of the frame sections of the corner construction with the bracket portion removed.

corners ofthe frame' the completed Figure :3 is a cross "sectional .end elevation-10f the bracket :portion of the-corner construction.

.Figure 4 is a cross sectional :elevation of'the corner-construction :taken .on :lines 4-4 .cf Fiure :1.

Figure :5 is across sectional elevation of the corner construction taken :on lines :5--5 (of Fig used in Figure :7 'for altering the apla'nercf :the

frame portion of the corner construction.

.By ;referring to ithe rdrawingz-an-d Figures 1 and 2 in particular, it'will .be observedthat-a corner construction-capable:goflbeing employed for many uses.:has been illustrated .as appliedfto the forma.- tion :of right angle corners such as would doe found :in storm sashronstruction :in forming a rectangular frameito fit a .dwellingwindowopening. In Figure 1 a side frame section "10 is shown united -.to a :topirame .section :II at their mitered comers 10A and -:I In, respectively,

I53:beinginengagement at their'mitered ends :II-B and BA.

By referring to Figure :5 .of the @drawing the cross sectional :form .of the side :frame section :I 3 mayrbeseen to comprise :an inverted T-like section including anxinwardly extending flange 13B and an outwardly extending flange I30, the main section l3; of the frame also being provided with oppositely disposed stub-like flanges I 3D.

The shape of the frame section I 3, which is exactly the same as the shape of the frame sections I0 and II illustrated in Figures 1 and 2, provides in eliect a pair of oppositely disposed, axially extending channels I 3E on the sides of the frame section I3, which channels I3E in con- Junction with the corner bracket I 2, serve to unite the frame section I3 .and II to the corner bracket I2.

By referring to Figure 3 of the drawing a cross sectional end elevation of the corner bracket I2 may be seen and it Will be observed that it conmea-ns .of an :L-rshaped bracket .12. .In Figure :2. a comparable xcorner between ithe :top frame section *-I I and: anothersside' frame section il'3iis 'rillus- 1 trated,-i;hesections IZI :and

i is united to the frame section H as also shown in Figure l, 'the'ends. "3A and I LA of the sidesection Hi and'the" top section ll, respectively, are

slipped within the channels defined in the bracket l2 and a pair of keys M are driven in alongside the frame sections is and H to positively unite the corner bracket 12 to the frame sections it and II. If desired, drilled and threaded openings may be provided in the frame piece H and [3, as indicated by the numerals I5 in Figure 2, and screws such as indicated by the numerals IS in Figure 1 may be employed to further unite the corne bracket 12 with th frame sections to,

' H and l3,respectively.

' It will thus be seen that when fourv frame section are cut to proper size and provided-with mitered ends, four of the cornerbracket 12 may be effectively employed toform a squareof rectangular frame which may then be used with the full confidence that it will retain its assembled shape as effectively and efficiently as though thecorners had been welded to one another.

In the form'ationof storm sash frames'it is, therefora'poss'ibleto form any size and shape of storm sash frame from continuous lengths of the primary frame form such as illustrated in Figure 5 and upon cutting appropriately sized lengths for the frame to be formed and mitering the corner the several pieces may be efiiciently and simply united into the appropriately sizedframe by the simple application of the corner brackets l2 as illustrated and heretofore described. It will be obvious' that under most. conditions'the drilled openings I5 and the screws l6 may be safely dispensed with as the locking keys M will unite the corners of the frame sufiiciently for their purpose. In forming some frame constructions it may obviously be. desired to vary the plane of the frame with respect to the corners so that frames may. be .fol'm'ed to more perfectly fit unusually shaped openings. Means is provided for achieving such aresult and by referring to Figures. 7 and .8

such means maybe seen. 7

In'Figure '7 an enlarged cross sectional detail of ac'omer bracket 11 isillustrated in locked position on an enlarged frame section 18. Downturned arms 1 IA with their inturned stub flanges IlB form in conjunction with the out-turned stub flanges i8A'of the frame section l8 channels for the location of key [9. .By referring to Figure 6 a perspective elevation of one of the keys l9 may belseent In orderthat the plane of the surface EBB of theframe'section l8 may be varied with respect to v the plane of the surface ITB of the the arms IIA of the corner bracket [1.

It will thus be seen that a simple and efficient 7 corner construction has been illustrated and described Which is particularly adapted to the formation of storm sash corners and that the resuiting frame and corner combination may be effectively used for the direct mounting of glazed or unglazed shape thereof and that the frame section itself so formed may be mounted directly on or over window openings in a dwelling or other building thereby permitting an all metal storm sash to be simply and effectively constructed. It is obvious that the corner construction is applicable to many othe types of framing wherein strong, durable and easily formed corner constructions are advantageous.

Having thus described my invention, what I claim is: g

1. In a corner construction for framing mem bers having an upstanding rib, a corner bracket including depending arms adapted to overlie the said upstanding rib of the framing members, and keys positioned between the said upstanding rib of the frame and the said downturned arms of the corner bracket so as to lock the corner bracket to the said framing members.

2. The combination of a framing member comprising a. surface flange having an upstanding T-headed body axially formed thereon and means for uniting mitered sections of the said framing members, said means consisting of Wedges and L-shaped brackets each comprising a surface flange having depending arms formed thereon, inwardly turned stub flanges formed on the said depending arms of theL-shaped bracket'to provide in conjunction with the T-shaped body of the framing section channels for the insertion of the said Wedges for locking the assembly together.

3. A storm sash frame comprising framing members having outwardly extending surface flanges and a T-shaped axially extending body section, and means for uniting the framing sec tions' attheir mitered corners, said means including L-shaped brackets having downwardly .depending arms for engaging the said T- -shape,d portions of the framing members and means for attaching the L-shaped corner brackets to the said framing'members so as to form a corner construction.

WALTER M. KR A NTZ. 

